Porter has been propping down at loose head in recent games.
Leinster forwards coach Robin McBryde feels Ireland will be the main winners from Andrew Porter and Cian Healy's front-row switch up.
Porter has started the first two matches of the season at loose-head prop with Healy providing cover at tight-head.
It could enable Porter to play in the same team as his fellow Lions' tight-head Tadhg Furlong.
And McBryde says that can only benefit Ireland head-coach Andy Farrell: